No issues with the Dynamat going over the existing insulation so I continued.
I first began by remounting the piece of plywood that serves as the mounting surface for the cup holder tray. Instead of using the two wood screws that Thor used I purchased some 8 x 24 stainless steel pan head screws along with ss washers and ss nylock nuts. I then mounted the plywood to the engine cover using 4 mounting points rather than Thor's 2. The plywood is now secure and does not act like a fulcrum.
Next I began installing the Dynamat acoustic hood liner.
After the hood liner was cut to fit and installed I taped all of the seams with Dynamat foil tape and this completed the hood liner installation.
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The hardest part of the project was locating the screws holes to reinstall the engine cover. I did install rubber washers between the mounting screw flat washers and the engine cover to reduce any vibration related noise from this mounting point. I also used some Dynamat Extreme sound deadening mat on the plywood before reinstalling the cup holder tray.
After the installation I did another sound check.
Beginning idle = 65 db
Current idle = 58 db
Reduction of noise at idle 10 percent
Beginning 1750 RPM = 75 db
Current 1750 RPM = 66 db
Reduction of noise at 1750 RPM = 12 percent
I must say I'm impressed with the Dynamat. I did not expect to get this level of noise reduction from the engine cover only. My next project will be to tackle the drivers floor pan and under the front part of the dash. Since I only ordered one sheet of the hood liner and I still have seven sheets of the Dynamat Extreme I believe I will check the results with the extreme before ordering more hood liner.
More to follow as time permits and other projects (e.g. install the missing bulb seal etc...) allow.
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